Large linear span
The 27.9 mm range lets the conditioned output follow axial or radial movement that exceeds the span of standard 8 mm and 11 mm proximity systems.
Bently Nevada · 50 mm3300 XL 50 mm Proximity Probe
Bently Nevada 330876-01-90-00-05 3300 XL 50 mm Proximity Probe
1/2-20 thread9.0 m integral leadMultiple approvals
Product Description
The Bently Nevada 330876-01-90-00-05 is a straight-exit 50 mm proximity probe in the 3300 XL 50 mm Proximity Transducer System. Its large sensing tip is used in the matched system that measures long-range radial position or differential expansion, while the 1/2-20 case provides the adjustable mounting path and the integral triaxial lead carries the probe response to the 3300 XL 50 mm Proximitor sensor.
Catalog code 330876-01-90-00-05 fixes the mechanical and cable execution: option 01 selects the 1/2-20 thread, 90 provides a 9.0 m total probe length, 00 omits armor and FluidLoc cable, and 05 selects the multiple-approval execution. Because the full electrical length is already integral to the probe, the 330876-01-90-00-05 connects directly to the matching nine-metre Proximitor configuration rather than receiving an extension cable.
Technical Specifications
| Technical Item | 330876-01-90-00-05 |
|---|---|
| Brand | Bently Nevada |
| Product Type | 3300 XL 50 mm proximity probe |
| Product Family | 3300 XL 50 mm Proximity Transducer System |
| Probe Style | Straight-exit large-tip probe |
| Case Thread | 01 — 1/2-20 UNF |
| Total Probe Length | 90 — 9.0 m (29.5 ft) |
| Cable Protection | 00 — without armor and without FluidLoc cable |
| Approval Option | 05 — multiple approvals |
| Nominal Linear Range | 27.9 mm (1100 mil) |
| Nominal Scale Factor | 0.394 V/mm (10 mV/mil) |
| Minimum Target Diameter | 63.5 mm (2.5 in) |
| System Connection | Direct to matched 9 m 3300 XL 50 mm Proximitor sensor |
| Measurement Role | Large-range position and differential expansion sensing |
| Probe Family Material | Corrosion-resistant stainless-steel case with molded sensing tip |
Extended-Range Differential Expansion Measurement
330876-01-90-00-05 supplies the long-range sensing element in a calibrated 50 mm probe, cable and Proximitor chain.
Lower scale factor
The 0.394 V/mm nominal scale factor spreads the available output across the longer mechanical range, so the monitor channel must use the matching 50 mm scaling.
Matched target field
A target at least 63.5 mm in diameter keeps the large electromagnetic field over a consistent conductive surface throughout the measurement stroke.
50 mm Probe Installation Geometry
The case, target and cable arrangement of 330876-01-90-00-05 must preserve both the mechanical travel and the complete nine-metre electrical path.
Threaded axial adjustment
The 1/2-20 body moves through the mounting bracket to establish the required cold gap before the locking hardware secures the case.
Probe-to-probe separation
Where two 50 mm probes face nearby targets, spacing and target width must prevent the sensing fields from interacting with one another.
Direct nine-metre route
The unarmored integral cable is routed without shortening, splicing or an added extension segment and is protected by the installation.
Frequently Asked Questions
Why can 330876-01-90-00-05 not use a standard 8 mm Proximitor sensor?
Its 27.9 mm range and 0.394 V/mm scale factor belong to the 50 mm transducer family. A smaller-system Proximitor would not supply the intended calibrated transfer function or monitor scaling.
Does 330876-01-90-00-05 require an extension cable to reach nine metres?
No. Option 90 already makes the integral probe and cable path 9.0 m long. Adding another cable changes the electrical length and is outside this ordered configuration.
What should be checked when 330876-01-90-00-05 cannot reach the expected range?
Verify the cold mechanical gap, target diameter, target material and the exact 50 mm Proximitor configuration. Also confirm that the integral cable has not been shortened, spliced or connected through another extension.
Why does 330876-01-90-00-05 need a larger target than an 8 mm probe?
The 50 mm tip creates a much wider electromagnetic field. A small or curved target can move part of that field off the conductive surface and change linearity and scale factor.
How should the unarmored cable on 330876-01-90-00-05 be protected?
Use a route that prevents abrasion, crushing, oil damage and unsupported load at the probe exit. Cable protection must not force a tight bend or transfer pulling force into the case.
What does the 05 suffix change on 330876-01-90-00-05?
It selects the multiple-approval execution of the probe. The suffix must remain part of the complete order identity when matching site certification requirements and replacement records.
Company Profile
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Catalog review
Suffixes and quantities are checked before quotation.
Original supply
Identification remains traceable through dispatch.
One-year warranty
Coverage stays linked to the order record.
Global coordination
Packing and tracking are arranged for the destination.
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